DE4212643A1 - Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber - Google Patents

Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber

Info

Publication number
DE4212643A1
DE4212643A1 DE19924212643 DE4212643A DE4212643A1 DE 4212643 A1 DE4212643 A1 DE 4212643A1 DE 19924212643 DE19924212643 DE 19924212643 DE 4212643 A DE4212643 A DE 4212643A DE 4212643 A1 DE4212643 A1 DE 4212643A1
Authority
DE
Germany
Prior art keywords
blower
cover
heat
semiconductor switch
switching element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19924212643
Other languages
German (de)
Inventor
Wolfgang Dipl Ing Fleischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19924212643 priority Critical patent/DE4212643A1/en
Publication of DE4212643A1 publication Critical patent/DE4212643A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

The blower unit (3) installed in its own compartment (2) is driven by a motor (5) which rotates the fan blades within a cover (6) through which air is drawn via an aperture (7) from the dust chamber (8). The semiconductor switch is a triac (9) sited on the rim of the cover which is sufficiently massive to absorb without difficulty the heat generated in the triac. The latter is wired (10) to a control circuit with components (11) mounted on a printed circuit board (12). ADVANTAGE - Cooling of semiconductor switch element is achieved without any specific heat sink.

Description

Die Erfindung betrifft einen Staubsauger mit einem Saug­ gebläse, bei dem zur Steuerung des Gebläsemotors in dessen Steuerkreis ein Halbleiterschaltelement angeordnet ist, das mit einem Kühlkörper in wärmeleitender Verbindung steht.The invention relates to a vacuum cleaner with a suction blower, in which to control the blower motor in its Control circuit, a semiconductor switching element is arranged, which is in a heat-conducting connection with a heat sink.

Ein solcher Staubsauger ist durch das DE-U-90 03 938 bekannt. Um eine ausreichende Kühlung des Halbleiterschalt­ elements sicherzustellen, ist dieses mit einem Kühlkörper versehen, der in den die Ansaugöffnung des Sauggebläses mit dem Staubraum des Staubsaugers verbindenden Saugkanal ragt. Somit wird der Kühlkörper von der angesaugten Luft bestrichen und das Halbleiterschaltelement gekühlt. Die Ausrüstung des Halbleiterschaltelementes mit einem Kühl­ körper bedeutet sowohl einen erheblichen Material- als auch Fertigungsaufwand.Such a vacuum cleaner is by DE-U-90 03 938 known. To ensure adequate cooling of the semiconductor switch elements, this is with a heat sink provided in the the suction opening of the suction fan with the dust chamber of the vacuum cleaner connecting suction channel protrudes. Thus, the heat sink is sucked in by the air coated and cooled the semiconductor switching element. The Equipping the semiconductor switching element with a cooling body means both a substantial material as well Manufacturing effort.

Der Erfindung liegt die Aufgabe zugrunde, einen Staubsauger der eingangs beschriebenen Art so auszubilden, daß die Kühlung des Halbleiterschaltelements auch ohne einen spezifisch für das Halbleiterschaltelement ausgelegten Kühlkörper möglich ist.The invention has for its object a vacuum cleaner of the type described above so that the Cooling of the semiconductor switching element even without one specifically designed for the semiconductor switching element Heatsink is possible.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß das Halbleiterschaltelement wärme­ leitend mit der Abdeckhaube des Sauggebläses verbunden ist. Die ohnehin am Sauggebläse vorhandene und von der ange­ saugten Luft bestrichene Abdeckhaube vermag die am Halb­ leiterschaltelement anfallende Wärme ohne weiteres auf­ zunehmen, so daß eine gute Kühlung des Halbleiterschalt­ elementes gewährleistet ist. Eine optimale Wärmeableitung wird erzielt, wenn das Halbleiterschaltelement unmittelbar an der Abdeckhaube befestigt ist, d. h. unmittelbaren metallischen Kontakt mit dem Material der Abdeckhaube hat. Die Abdeckhaube kann trotz der unmittelbaren Anordnung des Halbleiterschaltelementes an dieser aus Metall bestehen, da das Sauggebläse innerhalb des geschlossenen, aus Kunststoff bestehenden Staubsaugergehäuses angeordnet ist und somit keine Möglichkeit der Berührung des Sauggebläses besteht.The task is solved after Invention in that the semiconductor switching element heat is conductively connected to the cover of the suction fan. The existing on the suction fan and by the ange sucked air-covered hood is able to the half conductor switching element accruing heat easily  increase so that good cooling of the semiconductor switch element is guaranteed. Optimal heat dissipation is achieved when the semiconductor switching element immediately is attached to the cover, d. H. immediate has metallic contact with the cover material. The cover can despite the immediate arrangement of the Semiconductor switching element on this consist of metal, because the suction fan inside the closed, plastic existing vacuum cleaner housing is arranged and thus there is no possibility of touching the suction fan.

Anhand eines in der Zeichnung dargestellten Ausführungs­ beispiels wird die Erfindung nachfolgend näher beschrieben. Es zeigt:Based on an execution shown in the drawing for example, the invention is described in more detail below. It shows:

Fig. 1 einen Staubsauger im Teilschnitt, Fig. 1 shows a vacuum cleaner in partial section,

Fig. 2 die Anordnung eines Halbleiterschaltelementes an der Gebläsehaube im Detail. Fig. 2 shows the arrangement of a semiconductor switching element on the blower hood in detail.

Mit 1 ist ein Staubsauger bezeichnet, in dessen Gebläseraum 2 ein Gebläseaggregat 3 angeordnet ist. Dieses besteht aus einem Sauggebläse 4 und einem dieses antreibenden Gebläse­ motor 5. Das oder die Lüfterräder des Sauggebläses 4 sind von einer Abdeckhaube 6 umgeben, die eine Ansaugöffnung 7 für die aus dem Staubraum 8 des Staubsaugers 1 anzusaugende Luft aufweist. Am Außenumfang der Abdeckhaube 6 ist ein im Steuerkreis des Gebläsemotors 5 liegendes Halbleiterschalt­ element 9 angeordnet. Das Halbleiterschaltelement 9 kann unmittelbar an der Abdeckhaube 6 angeordnet werden, so daß es mit seinem Gehäuse direkt an der Abdeckhaube 6 anliegt. Es besteht auch die Möglichkeit, ein wärmeleitendes Medium (Wärmeleitpaste) zwischenzufügen. 1 with a vacuum cleaner is designated, in the blower chamber 2 a blower unit 3 is arranged. This consists of a suction fan 4 and a motor 5 driving this fan. The fan wheel or wheels of the suction fan 4 are surrounded by a cover 6 which has a suction opening 7 for the air to be sucked in from the dust chamber 8 of the vacuum cleaner 1 . On the outer periphery of the cover 6 , a semiconductor switching element 9 is arranged in the control circuit of the blower motor 5 . The semiconductor switching element 9 can be arranged directly on the cover 6 , so that it rests directly on the cover 6 with its housing. There is also the possibility of adding a heat-conducting medium (heat-conducting paste).

Die Abdeckhaube 6 wird von der angesaugten Luftmenge durch­ strömt und durch diese Luft gekühlt. Wegen ihrer gegenüber dem Halbleiterschaltelement 9 großen Masse vermag die Abdeckhaube 6 die im Halbleiterschaltelement 9 anfallende Wärme ohne jegliche Schwierigkeiten aufzunehmen, so daß eine gute Kühlung des Halbleiterschaltelementes 9 erzielt wird. Vorzugsweise wird das Halbleiterschaltelement 9 im vorderen kühleren Bereich der Abdeckhaube 6 befestigt.The cover 6 is flowed through by the amount of air sucked in and cooled by this air. Because of its large mass compared to the semiconductor switching element 9, the cover 6 can absorb the heat accumulating in the semiconductor switching element 9 without any difficulties, so that good cooling of the semiconductor switching element 9 is achieved. The semiconductor switching element 9 is preferably fastened in the front cooler region of the cover 6 .

Das Halbleiterschaltelement 9 ist über eine Leitung 10 mit einer die übrigen Elemente 11 des Motorsteuerkreises tragenden Leiterplatte 12 verbunden.The semiconductor switching element 9 is connected via a line 10 to a printed circuit board 12 carrying the remaining elements 11 of the motor control circuit.

Wie die Detaildarstellung nach Fig. 2 erkennen läßt, besteht das Halbleiterschaltelement 9 aus einem auf einer Träger­ platte 13 angeordneten Triac 14. Die Trägerplatte 13 ist mittels eines gut wärmeleitenden Verbindungselementes 15, z. B. ein Niet, an der Abdeckhaube 6 des Sauggebläses 4 befestigt. Damit kann die im Triac erzeugte Wärme in aus­ reichendem Maße zur Abdeckhaube 6 abgeleitet werden.As the detailed view according to Fig. 2 reveals, the semiconductor switching element 9 from a plate on a support 13 arranged triac fourteenth The carrier plate 13 is by means of a heat-conducting connecting element 15 , for. B. a rivet, attached to the cover 6 of the suction fan 4 . The heat generated in the triac can thus be dissipated to the cover 6 to a sufficient extent.

Claims (3)

1. Staubsauger mit einem Sauggebläse, bei dem zur Steuerung des Gebläsemotors (5) in dessen Steuerkreis ein Halbleiter­ schaltelement (9) angeordnet ist, das mit einem Kühlkörper in wärmeleitender Verbindung steht,
dadurch gekennzeichnet,
daß das Halbleiterschaltelement (9) wärmeleitend mit der Abdeckhaube (6) des Sauggebläses (4) verbunden ist.1. Vacuum cleaner with a suction fan, in which a semiconductor switching element ( 9 ) is arranged in the control circuit for controlling the blower motor ( 5 ), which is in heat-conducting connection with a heat sink,
characterized,
that the semiconductor switching element ( 9 ) is thermally connected to the cover ( 6 ) of the suction fan ( 4 ). 2. Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß das Halbleiterschaltelement (9) unmittelbar an der Abdeckhaube (6) befestigt ist.2. Vacuum cleaner according to claim 1, characterized in that the semiconductor switching element ( 9 ) is attached directly to the cover ( 6 ). 3. Staubsauger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Abdeckhaube (6) aus Metall besteht.3. Vacuum cleaner according to claim 1 or 2, characterized in that the cover ( 6 ) consists of metal.
DE19924212643 1992-04-15 1992-04-15 Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber Withdrawn DE4212643A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924212643 DE4212643A1 (en) 1992-04-15 1992-04-15 Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924212643 DE4212643A1 (en) 1992-04-15 1992-04-15 Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber

Publications (1)

Publication Number Publication Date
DE4212643A1 true DE4212643A1 (en) 1993-10-21

Family

ID=6456893

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924212643 Withdrawn DE4212643A1 (en) 1992-04-15 1992-04-15 Suction cleaner with blower - has blower motor controlled by semiconductor switch from which heat is conducted directly through cover of blower into air stream drawn from dust chamber

Country Status (1)

Country Link
DE (1) DE4212643A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770348A2 (en) 1995-10-25 1997-05-02 Aktiebolaget Electrolux Cooling arrangement for power components in a vacuum cleaner
EP1138242A2 (en) * 2000-03-30 2001-10-04 Matsushita Electric Industrial Co., Ltd. Electric blower and electric cleaner using same
EP1764022A2 (en) 2005-09-19 2007-03-21 Vermop Salmon Gmbh Suction device for cleaning operations with a rechargeable accumulator
CN100358456C (en) * 2003-09-27 2008-01-02 乐金电子(天津)电器有限公司 Heat radiation structure of vacuum cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7715719U1 (en) * 1977-05-17 1978-02-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen VACUUM CLEANER WITH ELECTRONIC CONTROL DEVICE FOR THE MOTOR OF THE FAN UNIT
DE9100815U1 (en) * 1990-02-05 1991-04-11 Siemens AG, 8000 München Vacuum cleaner with a speed-controlled fan
DE9003938U1 (en) * 1990-04-04 1991-08-08 Siemens AG, 8000 München Vacuum cleaner with a suction fan

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7715719U1 (en) * 1977-05-17 1978-02-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen VACUUM CLEANER WITH ELECTRONIC CONTROL DEVICE FOR THE MOTOR OF THE FAN UNIT
DE9100815U1 (en) * 1990-02-05 1991-04-11 Siemens AG, 8000 München Vacuum cleaner with a speed-controlled fan
DE9003938U1 (en) * 1990-04-04 1991-08-08 Siemens AG, 8000 München Vacuum cleaner with a suction fan

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770348A2 (en) 1995-10-25 1997-05-02 Aktiebolaget Electrolux Cooling arrangement for power components in a vacuum cleaner
US5701631A (en) * 1995-10-25 1997-12-30 Aktiebolaget Electrolux Cooling arrangement for power components in a vacuum cleaner
EP1138242A2 (en) * 2000-03-30 2001-10-04 Matsushita Electric Industrial Co., Ltd. Electric blower and electric cleaner using same
EP1138242A3 (en) * 2000-03-30 2005-01-12 Matsushita Electric Industrial Co., Ltd. Electric blower and electric cleaner using same
CN100358456C (en) * 2003-09-27 2008-01-02 乐金电子(天津)电器有限公司 Heat radiation structure of vacuum cleaner
EP1764022A2 (en) 2005-09-19 2007-03-21 Vermop Salmon Gmbh Suction device for cleaning operations with a rechargeable accumulator
EP1764022A3 (en) * 2005-09-19 2008-02-27 Vermop Salmon Gmbh Suction device for cleaning operations with a rechargeable accumulator

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